Locomotive stoker



2 Sheets-Sheet 1 E. MARTIN LoCoMoTIvE STOKER Filed May 28, 1937 Feb. 20, 1940.

INVENTOR.

m. w M m m Feb. 20, 1940. MAR-rm 2,191,113

LOCOMOTIVE STOKER Filed May 28, 1937 2 Sheets-Sheet 2 IN VENTOR.

Q 4- BY Eugene $0 ATTORNEYS 51 of conveyors provided with an offset between telescoped intosaid front section. The front sectheir adjacent ends, a novel driving arrangement tion 21 is universally connectedat 29 to the lowwhich permits operation of such conveyors from 1 er end of the. fuel delivery conduit I 8 while the their adjacent ends ina manner whereby one rear section isuniversally connected at beconveyor may deliver in an endwise direction to heath the trough conduit2l. 1 1 1 1 H) the offset conveyor, the construction affording Aconveyor screw 3| is rotatably mounted with-" "l6 1 conveyors provided with an offset between their livery conduit H3. The rearward end of the conits assembly and disassemblyis facilitated; improved flexible support for the: rearward 'end;;go

1 Another object of this invention resides inproof the intermediate conduit 26, will now be devidinga novel drive arrangement for operating scribed in detail. 1 :1 j 1 theoffset conveyors from their adjacent ends by The forward portion 23 of the trough conduit means including a chain which encompasses the 2! comprises a housing 33 secured withinthe al- 125 axes of the oifset conveyors. 1 cove 24 to the frame l3. This housing has anzjgg 30 ..Fig. 1 is a vertical: section through adjacent 34 to the rearward portion 22 0f the trough cons-r30 35 11 :Figures 2 and 3 are sectional views taken on the plurality of lugs 38's paced in a helical relatiom- 5 1 1 Referring to these drawings L indicates a is provided with gear teeth 40 adapted to be enand the fuel bin it disposed above the floor l1 ceived in a'counter-bored portion 43 of a terminal 1 means of support brackets l9 and 20. On the for conveyance by the screw 32. Beneath the 1'55 endof .the tenderbetweenthe frame: [3 andnthe ahollow shell 50 having a sphericalouter surface Patented Feb. 20, 1940 1 1 1 2,191,113

1 LoooMo'rIvE STOKER 1 Eugene Martin, Erie, Pal, assignor to The Standard Stoker Company, Incorporated; a. corporation of Delaware 1 Application May 28, 1937,Serial 1vo. 145 ,1217

6 Claims. (01. 198-15) This invention relates to locomotive stokers floor I1. Averticalplate25 defines the rearward and particularly to the conveying system thereof. extent of the alcove 24i Between the locomotive The principal object of this invention is to and tender. is an intermediate conduit 26, consist- 1 1 provide, in'a locomotive stoker employing a pair ing of a front section 21 and a rear section. 28

UNITED STATES "PATENT. 1 OFFICE direct conveyance of fuel and with the use of 1 in the trough conduit 21am urges fuel11forwardbut few parts." 1 j 1 1 I 1 1 1 ly to the lower rearward end of a conveyor screw 1 It islalso an object of this inventionto pro- 32 disposed within the intermediateconduit 26 1 vide, in a locomotive stoker employing several which is arranged to conveyedthe fuel to the d'e adjacent 1 ends, a novel joint structure which is veyor screw 32 is oifset below the forwardend of disposed exterior of the passage for fuel. 1 1 the conveyor screw 3!. A novel means for driv- More specifically, it is an object of this invening the conveyor screws from their adjacent ends tion to so arrange this novel joint structure that has been provided, and this, together with the Otherobjects as well asthe advantages thereof 1 upper j cylindrical portion 34, and a subjacent will become apparent as the following specificacasing 35 which serves to maintain in operative .tion is readin connection with the accompanyrelation the drive shaft 36 of the conveyor ingdrawings, in which 1 11 screw 32. Bolts secure the cylindrical portion 1 portions of. a locomotive and tender showing a duit 2|. A sleeve 3! is rotatably mounted in the 1 stoker in which the invention has been embodied, cylindrical portion 34 and embraces the conveyor partsbeing shown in central vertical sectionand screw 3| passing therethrough. Along its inother parts in side elevation; 1 1 1 ternal portion, the sleeve 31 is provided with a 1 lines 2-2 and 3-43, respectively, of 1 with and arranged to engage corresponding recesses portions broken away; and v 1 39 formed in the periphery of that portion of the Fig. 4 is a sectional .view taken on the line 4-4 co'nveyor screw; 3| .which is disposed Wi h n the 1 a of Fig 1 1 1 1 sleeve 31.1 On its outer periphery, the sleeve 3! 1 locomotive having afirebox backhead ID, a deck gaged by anendless chain 4| for effecting rota- 1 II and a cab 12. 1 The tender is indicated by T .tionof the conveyor screw 32. 1 1

1 and consists of a frame l3 above which is mount-. The sleeve. 31 extends forwardly beyond the ed a tankyld having the water compartment l5 1 front surface 42 .of the housing 33 and is re- 1 thereof. The stokerfor transferringfuel from member secured against the front surface :42 1

the tender to the locomotive is generally indi- 1 by bolts 45. 1 On-its forward end 46, the terminal 'cated byS and includes a fuel delivery conduit 18 member is in the form of a spout arranged to.

1 rigidly securedfto. the firebox backhead H! by discharge fuel into the intermediate conduit 26 tender, the stoker consists of a trough conduit terminal member 44, the housing 33 is closedby 21, the rear portion 22 of which extends into the cover 41 which; is securedlagainst the front surwater compartment [5 while itsforwardportion face 42 by bolts 48., This cover 4'! has formed 23 extends into an alcove. 24 formed at the front therewitha bearing 49 for the shaft 33. and also 5| which forms one element of the universal connection between the intermediate conduit 26 and the tender. The shaft 36 has secured thereto a sprocket 52 which is also engaged by the endless chain 4|. Motion is transmitted to the chain 1 4| by a drive unit 53 which includes a casing 54 secured to a side Wall of the housing member 33. The casing contains a pair of shafts 56, 51 connected by the gear 58 and pinion 59, respectively. 'Power, supplied to the shaft 51 from any suitable source by means of a joint 66 (Fig. 2) is transmitted through gearing 58,59 to the shaft 56 which has secured on an exterior end thereof a sprocket gear 6| engaging the chain 4|.

The forward end of the shaft 36 carries a detachable coupling 62 which is connected in well known manner to a coupling 63, forming a universal joint 64 disposed within the hollow shell 50. On the rearward lower end of the rear conduit section 28 is a semi-spherical flange 28a fitted against the under side of spherical surface 5|. In vertical transverse cross section, the

-- rearward portionof the conduit section 28 is forms with the conduit section 28 a cylindrical portion 69 therein. In this cylindrical portion 69 is mounted a disc 10, the outer surface of which is arcuateto permit angular movementof the disc. The rearward portion of the disc 10 detachably carries the. joint coupling 63 and on its 1 opposite side isfarranged to receive a disc 1| formed integrally with the conveyor screw 32.

Cap screws 12 secure the discs 10, H in operative relation. The upper edges of the sides 65, 66 slope forwardly toward the tubular portion of the rear conduit'section 28 and detachably support a cover plate 9.

' In the operation of this device, fuel in thebin I6 falls through an aperture 13 of the tender floor l'linto the trough conduit 2|. The conveyor screw 3| urges the fuel forwardly past the crusher 14,

I a portion 15 of which may be secured to the floor At'its rearward end, the. conveyor screw 3| and the screw 32, thereby securing a more direct rotation.

is provided with a journal 16 received'in a bearing 11 of a construction which restrains relative fore or aft movement of the screw incident to its Upon beingcrushed, the fuel passes into the forward portion 23 of the trough conduit. In order. to permit unobstructed passage of fuel through the sleeve 31, that portion of the conveyor screw 3| therein is provided with a hub 18 of reduced diameter. From the cylindrical sleeve 31, the fuel enters the spout 46 and discharges into thelowerend of the intermediate conduit 26 for conveyance to the locomotive by the conveyor screw 32.

Those familiar with the art willrecognize that the particular drive arrangement for the conveyor screws 3|, 32 permits'endwise delivery. of fuel by the conveyor screw 3| through the spout 46 and onto the conveyor screw 32. It will also be apparent that the construction permits forward inclination of the intermediate conduit 26 conveyance of fuel with fewer parts. Since the disc 16 has an arcuate outer periphery, the conveyor screw 32 is thus provided with a suitable hearing which allows for slight angular movement of the screw 32; at the same time, the disc 10 excludesfuel from working around the universal joint 64.

I claim;

1. In a locomotive having a firebox and a tender provided with a fuel bin, astoker for transferring fuel from said bin to said firebox including a conduit mounted on the tender and arranged to receive fuel from said bin, a conveyor screw in said conduit for urging fuel forwardly, said conduit including a forwardly opening end portion through which fuel is discharged in an endwise direction by said conveyor screw, a conduit extending between the locomotive and tender and at its remote ends being flexibly related with a respective. vehicle, the rearward end of the second named conduit arranged to receive fuel fromthe end portion of the first named conduit,

a conveyor screw in the second named conduit having its rearward end offset from the forward end of the first named conveyor screw, and

means rearward of the second named conveyer screw for driving the first named conveyor screw from its forward end and the second named'conveyor screw from its rearward end, said last named means including a flexible joint on the tender disposed outside the passage for fuel and arranged with its axis of articulation in approximate coincidence with'the'axis of articulation of the second named conduit.v

2. In a locomotive havingv a firebox and a tender. provided with a fuel bin, a stoker for transferring fuel from said bin to said firebox including a, conduit mounted on the tender and arranged to receive fuel from said bin, a conveyor screw in said conduit for urging fuel forwardly, said conduit including a forwardly opening end portion through which fuel is discharged in an endwise direction by said conveyor screw,

a conduit extending between theglocomotive and forward end of the first named conveyor screw,

includinga member embracing the first named conveyor screw and being operativ'ely connected, thereto, and means operatively connecting said .member and the second named conveyor screw,

said last named means including a flexible joint on the tender disposed outside the passage for fuel and arranged with its axis of articulation in approximate coincidence with the axis of articulation of'the second named conduit.

.3. In a locomotive having a firebox and a tender provided with a fuel bin, a stoker for transferring fuel fro-m said bin to said firebox including a conduit mounted on the tender .and arranged to receive fuel from said bin, a conveyor'screw in said conduit for urging fuel forwardly, said conduit including a forwardly opening end portion through whichfuel is discharged in an endwise direction by said conveyor screw, a conduit extending between the locomotive and tender and at its remote ends being flexibly related with a respective vehicle, the rearward end of the second named conduit. arranged to receive fuel from the end portion of the first named conduit, a conveyor screw in the-second named conduit having its rearward end offset from the forward end of the first named conveyor screw, and means rearward of the second named conveyer screw for driving the first named conveyor screw from its forward end and the second named conveyor screw] from its rearward end, the rearward end of the second named conveyor screw having a flexible journal within the second named conduit and a flexible driving connection rearward of said flexible journal oper-' atively connecting said screw with said means, said flexible driving connection being arranged with its axis of articulation in approximate coincidence with the axis of articulation of the second named conduit.

4. In a locomotive having a firebox and a tender having a fuel bin, a stoker for transferring fuel from said bin to said firebox including a conduit extending between the locomotive and tender, a conveyor screw within said conduit, a conduit on the locomotive flexibly connected to the forward end of the first named conduit, the rearward end of the first named conduit being in the form of a spherical shell, means on the tender affording a support for the rearward end of the first named conduit, said means comprising a hollow shell having a spherical surface cooperating with the spherical shell of the first named conduit to form a universal joint, a shaft carried by said hollow shell, a disc carried by therearward end of the conveyor screw, said disc having an arcuate outer surface forming a flexible journal for said conveyor screw in said first named conduit, and a universal joint connecting said disc and said shaft within said hollow shell.

5. In a locomotive having a firebox and a tender having a fuel bin, a stoker for transferring fuel from said bin to said firebox including a conduit extending between the locomotive and tender, a conveyor screw within said conduit, a conduit on the locomotive flexibly connected to the forward end of the first named conduit, the rearward end of the first named conduit being, in the form of a spherical shell, means on the tender affording a support for the rearward end of the first named conduit, said means comprising a hollow shell having a spherical surface cooperating with the spherical shell of the first named conduit to form a universal joint, a shaft carried by said hollow shell, a disc carried by the rearward end of the conveyor screw, said disc having an arcuate outer surface forming a flexible journal for said conveyor screw in said first named conduit, and a universal joint connecting? said disc and said shaft within said hollow shell. 6. In a locomotive having a firebox and a tender having a fuel bin, a stoker for transferring fuel from said bin to said firebox in-' cluding a conduit extending between the locomotive and tender, a conveyor screw within said con-' duit, a conduit on the locomotive flexibly connected to the forward end of the first named conduit, the rearward end of the first named conduit being in the form of a spherical shell, means on the tender affording a support for the rearward end of the first named conduit, said means comprising a hollow shell having a spherical surface cooperating with the spherical shell of the first named conduit to form a universal joint, a shaft carried by said hollow shell, a disc detachably carried by the rearward end of the conveyor screw, said disc having an arcuate outer surface forming a flexible journal for said conveyor screw in said first named conduit, and a universal joint connecting said disc and said shaft within, said hollow shell.

EUGENE MARTIN. I 

